Sikkim-Manipal University of Health Medical and Technological Sciences (SMUHMTS) 2008-2nd Sem M.C.A Computer Assignment s - Question Paper

MC0070 – 01
Marks –60
OPERATING SYSTEMS WITH UNIX

No. Of Credits: 4 Book ID: B0682

1. Distinguish the terms: Program, Process and Threads
2. Define Operating systems based on its functional features
3. Notes on Batch Systems, Distributed systems, Time Sharing systems, Real Time operating systems.
4. Which all Resource management does Operating System does? explain every kind of Resource Management.
5. With a Block diagram explain UNIX Operating Systems Architecture.
6. With a block diagram explain 5 state Process Model in which a process resides.
7. Why we need situation switching? explain with an example.
8. Discuss the terms:
? Best Fit
? Worst Fit
? First Fit and list out their demerits and merits.
9. Use Optimal, LRU and FIFO Page Replacement Algorithms for the Page address stream given:
3, 2, 1, 5, 2, 4, 5, 3, 2, 5, two
(Note: Frame size is 3)
10. Define Terms:
? CPU Utilization
? Throughput
? Turnaround time
? Waiting time

11. provided subsequent Process and Burst Time details:
First Come 1st Serve (FCFS)
Shortest Job 1st (SJF) algorithms

Process Burst Time
P1 7
P2 9
P3 2
P4 6




12. Define Semaphores. Write a simple piece of code to implement Semaphores.





MC0070 – 02
Marks –60
OPERATING SYSTEMS WITH UNIX
No. Of Credits: 4 Book-ID: B0683

1 Write output of command:
? # ps –l
And define every field for the output found. (7 Marks)

2. Write the code used for implementing fork ( ) system call and pipe ( ) system call.
(9 marks)

3. Write a brief note on flavors of UNIX shells. (7 marks)

4. Use cat command to carry out subsequent functions:
? Display text “Hello, Welcome to SMU”
? Redirect this text to a file with name MCA
? Append a different word “Manipal” to the original text stored in file MCA.
(9 Marks)
5. Which is the command to view Environment settings of your system? How do you set the subsequent environment variable values using that command:
i. HOME with SMU
ii. TERM with Suprit007
iii. PATH with /usr/local/bin
(5Marks)
6. Which command is used to:
? Copy a file named Gangtok to directory called Sikkim
? Rename a file called “Vangpurappu Venakta Sai Laxman” as VVS Laxman (you can’t use rename command)
? If we use mv command to move file-Gangtok from Directory-Sikkim to Directory-India and cp command to move VVSLaxman from Directory-India to to Directory-Deccan-Chargers. What is the difference you notice in directories Sikkim and India (5 Marks)


7. Discuss conditions that reason Deadlock. Depict a deadlock situation with a block diagram.
(5 Marks)
8. How can we detect Deadlock using cycle detection algorithm. provide complete algorithm.
(5 Marks)

Earning:   Approval pending.